Omega Speedmaster Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer

Reference 310.30.42.50.01.004

Omega Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer

About this watch

The Speedmaster Moonwatch Professional 310.30.42.50.01.004 debuted in 2026 as a sapphire-crystal variant of the modern Moonwatch, retaining the core design characteristics associated with the fourth-generation Speedmaster worn during the Apollo missions. The stainless steel case measures 42 mm in diameter, with a lug-to-lug length of 47.5 mm and a thickness of 13.54 mm. Sapphire crystal is fitted to both the front and the caseback, with anti-reflective treatment applied to the inner surface of the front crystal. Water resistance is rated to 50 metres. The watch is delivered on a polished-brushed stainless steel bracelet constructed in the contemporary Moonwatch five-arched-link style and fitted with a foldover clasp incorporating OMEGA’s comfort adjustment system. The dial adopts an inverted black-and-white configuration constructed using a double-plate step dial. The upper dial plate is finished in black with a varnished and lacquered surface, while the recessed subdials are executed in white with the same varnished finish. The subdials are framed by rhodium-plated rings and display small seconds, a 30-minute chronograph counter, and a 12-hour chronograph counter. The minute track is transferred in white on the main dial, with black transfers used on the subdials. Applied hour markers and the OMEGA logo are rhodium-plated, as are the Moonwatch-style hands, all filled with white Super-LumiNova. Surrounding the dial is a black ceramic bezel ring fitted with a tachymeter scale rendered in white enamel, including the characteristic dot-over-90 marking. Powering the watch is the manually wound OMEGA Co-Axial Master Chronometer calibre 3861. The movement operates at 3 Hz, provides a power reserve of approximately 50 hours, and is certified by METAS for precision, magnetic resistance up to 15,000 gauss, and overall performance. The movement is visible through the sapphire crystal caseback.
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Specifications

Brand
Omega
Family
Speedmaster
Model
Speedmaster Professional Moonwatch 3861 Stainless Steel / Black Lacquer
Reference
310.30.42.50.01.004
Movement
3861
Movement Features
  • Small Seconds, Hours, Minutes
  • Chronograph
  • Chronometer
Case
Stainless Steel 42mm
Dial Color
Black
Crystal
Sapphire
Water Resistance
50

Current Listings

[WTS] Omega Speedmaster Racing 40mm - Reverse Panda - Jan 2026 Full Set - Warranty until 2031

Omega Speedmaster Racing 40mm - Reverse Panda - Jan 2026 Full Set - Warranty until 2031

Omega - 326.30.40.50.01.002 · $3,450
This is a rare 'fresh' example of the Omega Speedmaster Racing series, purchased from an AD in Japan on January 20, 2026, and featuring a black dial with silver sub-dials.

  • Condition: Mint, with minor scuff on clasp
  • Case size: 40mm diameter
  • Movement: Omega Calibre 3330, Co-Axial Chronometer with Si14 Silicon Balance Spring
  • Power reserve: 52 hours
Posted at
Apr 15, 2026, 11:27 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Date 3211.31.00 — Panda Dial — Big Seahorse Caseback — Fresh Service — $2599 Shipped (Tariff Covered)

Omega Speedmaster Date 3211.31.00 — Panda Dial — Big Seahorse Caseback — Fresh Service — $2599 Shipped (Tariff Covered)

Omega - 3211.31.00 · $2,599
Up for sale is an Omega Speedmaster Date featuring a clean silver ‘panda’ dial with black subdials and subtle red accents. The stainless steel case measures 40mm in diameter, approximately 46mm lug-to-lug, ~15mm thickness, and 20mm lug width.

  • Condition: pre-owned, unpolished case with honest wear
  • Case size: 40mm diameter
  • Lug-to-lug length: 46mm
  • Thickness: ~15mm
Posted at
Apr 15, 2026, 10:20 PM
Active
View listing on r/WatchExchange
[WTS] Chocolate Omega Speedmaster Moonphase Two Tone

Chocolate Omega Speedmaster Moonphase Two Tone

Omega - 304.23.44.52.13.001 · $8,500
A two-tone Omega Speedmaster Moonphase with a chocolate dial, featuring the Cal 9904 movement.

  • Condition: very good condition with some normal wear
  • Movement: Cal 9904
  • Size: 44mm diameter
Posted at
Apr 15, 2026, 9:20 PM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced. 3510.50.

Omega Speedmaster Reduced. 3510.50.

Omega - 3510.50 · $2,350
This Omega Speedmaster Reduced is being sold in good condition and has an aftermarket strap. The watch comes with shipping from NJ USA.

  • Condition: Clean, runs well
  • Strap: Aftermarket strap
Posted at
Apr 15, 2026, 6:59 PM
Active
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[WTS] Omega Speedmaster Moonwatch Titanium Co-Axial 311.93.44.51.03.001 - 9.9/10 - $6,250

Omega Speedmaster Moonwatch Titanium Co-Axial 311.93.44.51.03.001 - 9.9/10 - $6,250

Omega - 311.93.44.51.03.001 · $6,250
A sharp example of the Omega Speedmaster Moonwatch Co-Axial Titanium, featuring a 44.25mm titanium case and blue ceramic tachymetric bezel.

  • Condition: 9.9/10
  • Case size: 44.25mm diameter
  • Power reserve: 60 hours
Posted at
Apr 15, 2026, 1:22 PM
Active
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[WTS] Omega Speedmaster Day Date 3523.80

Omega Speedmaster Day Date 3523.80

Omega - 3523.80 · $2,450
For sale is an Omega Speedmaster Day Date with a beautiful blue dial, in excellent condition and running super solid.

  • Condition: excellent
  • Payment methods accepted: crypto, other (with small fee)
  • Location: southwest FL
  • Open to trades for: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 15, 2026, 10:55 AM
Active
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[WTS] Omega Speedmaster Broad Arrow 3594.50

Omega Speedmaster Broad Arrow 3594.50

Omega - 3594.50 · $3,350
A pre-owned Omega Speedmaster Broad Arrow in excellent condition with very little wear.

  • Condition: Excellent condition with very little wear
  • Payment Methods Accepted: Multiple payment methods including crypto
  • Available To Trade For: Tudor, Cartier, Rolex, Omega, Breitling, AP
Posted at
Apr 15, 2026, 10:40 AM
Active
View listing on r/WatchExchange
[WTS] Omega Speedmaster Reduced 3510.50 2 AVAILABLE

Omega Speedmaster Reduced 3510.50 2 AVAILABLE

Omega - 3510.50 · $2,550
Two Omega Speedmaster Reduced in great condition for sale, both running solid and coming as watch only.

  • Condition: Great condition, some light wear
  • Bracelet condition: Pretty good
  • Crystals condition: 0 or very minimal scratches
Posted at
Apr 15, 2026, 10:14 AM
Active
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[WTS] Omega Speedmaster 3210.50 Black Dial $2,090

Omega Speedmaster 3210.50 Black Dial $2,090

Omega - 3210.50 · $2,090
The Omega Speedmaster Date is a 40mm stainless steel automatic chronograph with a black dial and tachymeter bezel, featuring a sporty classic look and an automatic movement.

  • Condition: pre-owned, good condition with scuffs due to age
  • Case size: 40mm diameter
  • Lug-to-lug length: 45mm
  • Lug width: 19mm
Posted at
Apr 15, 2026, 9:42 AM
Active
View listing on r/WatchExchange